Wall clock



FIG. 1 is a perspective view of wall clock of my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a back side view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom view thereof. 

The ornamental design for wall clock, as shown and described. 